%0 Journal Article %A Plachky, Detlef %T An ideal theoretic characterization of finite sets, finite algebras, and $\sigma$-algebras of countably generated type %J Mathematica slovaca %D 2001 %P 301-311 %V 51 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_2001__51_3_a6/ %G en %F MASLO_2001__51_3_a6